- class Light(port)¶
LEGO® Powered Up Light.
port (Port) – Port to which the device is connected.
Turns on the light at the specified brightness.
brightness (Number, %) – Brightness of the light.
Turns off the light.
Making the light blink¶
from pybricks.pupdevices import Light from pybricks.parameters import Port from pybricks.tools import wait # Initialize the light. light = Light(Port.A) # Blink the light forever. while True: # Turn the light on at 100% brightness. light.on(100) wait(500) # Turn the light off. light.off() wait(500)
Gradually change the brightness¶
from pybricks.pupdevices import Light from pybricks.parameters import Port from pybricks.tools import wait, StopWatch from umath import pi, cos # Initialize the light and a StopWatch. light = Light(Port.A) watch = StopWatch() # Cosine pattern properties. PERIOD = 2000 MAX = 100 # Make the brightness fade in and out. while True: # Get phase of the cosine. phase = watch.time() / PERIOD * 2 * pi # Evaluate the brightness. brightness = (0.5 - 0.5 * cos(phase)) * MAX # Set light brightness and wait a bit. light.on(brightness) wait(10)